Direct-current motor driving device

A driving device and DC motor technology, which is applied in the direction of DC motor rotation control, excitation or armature current control, etc., can solve the problems of large size, large loss, and serious resource occupation of the main controller port of the motor driver, and achieves low loss, Improve utilization efficiency and reduce volume

Pending Publication Date: 2018-05-04
世纪执一(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a DC motor drive device to solve the problem that the port resources of the main controller are seriously occupied due to the occupation of multiple ports of the main contro

Method used

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Embodiment 1

[0022] figure 1 A schematic structural diagram of a DC motor driving device provided in an embodiment of the present invention, wherein a DC motor driving device includes a main controller, a chip module, a power supply module and an H-bridge circuit module.

[0023] The chip module is used to control the output of the output end of the chip module according to the pulse width modulation PWM signal, wherein the chip module includes 8 ports, wherein port 1 is connected to the ground signal, port 2 is the first output port P1, and port 3 is the second output port. The second output terminal P2, the port 4 is the PWM input terminal, the port 5 is the fourth output terminal P4, the port 7 is the third output terminal P3, and the port 8 is the VCC input terminal. The H-bridge circuit module is used to control the forward or reverse rotation of the motor according to the output signal of the output terminal of the chip module; the H-bridge circuit module includes a motor and four co...

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PUM

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Abstract

The invention discloses a direct-current motor driving device. The direct-current motor driving device is characterized by comprising a chip module, a power supply module and an H-bridge circuit module, wherein the chip module is used for controlling output of an output end of the chip module according to pulse width modulation PWM signals; the output end of the chip module comprises a first output end P1, a second output end P2, a third output end P3 and a fourth output end P4; the H-bridge circuit module is used for controlling a motor to rotate forwards or reversely and adjusting a rotationspeed according to output signals of the output end of the chip module; the power supply module is used for supplying power for the chip module and the H-bridge circuit module. Compared with the prior art, the direct-current motor driving device disclosed by the invention can effectively solve the problem of serious resource occupancy of a main controller port only by needing a PWM port.

Description

technical field [0001] The invention relates to the technical field of motor drive, in particular to a DC motor drive device. Background technique [0002] Typically, the control of a DC motor requires the use of a motor driver. The motor driver mainly realizes two functions of motor control: first, controls the steering of the motor. Second, control the speed of the motor. [0003] In order to realize the above two functions, it is necessary to provide two logic level signals to the motor driver to realize the positive and negative rotation of the motor through different high and low level logic signals; and one enable signal to control different speeds of the motor. In this way, at least 3 output ports (2 I / O digital ports and 1 PWM output port) on the main controller must be occupied to control a motor. As a result, the limited host controller port resources are seriously occupied. In the case of controlling multiple motors, there will be insufficient ports; in additio...

Claims

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Application Information

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IPC IPC(8): H02P7/03H02P7/29
CPCH02P7/04H02P7/29
Inventor 叶昌青
Owner 世纪执一(北京)科技有限公司
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